Gas Volume Analyzer [GVA-700] -

GVA-700

This measuring instrument(* CE non-compliant) automatically measures gas volume / internal gas pressure, air content and oxygen concentration for quality control in the bottling process of carbonated drinks, etc.

Applications

[Soft drinks and brewery]

Can automatically measure gas volume / internal gas pressure, air content and oxygen concentration for quality control in the bottling process of soft drinks, etc.

Measurement items	Application
Gas volume / internal gas pressure (volume of carbon dioxide)	Carbonated drink (PET bottles, metal cans and glass bottles)
Air content *measurement capability of oxygen concentration (option)	Carbonated drink (PET bottles, metal cans and glass bottles)
Inside gas pressure	Carbonated / non-carbonated drink (PET bottles, metal cans and glass bottles)

This measurement instrument cannot be applied to the following containers.

･ A sample container using a cork
･ A sample container of a special shape

Supported standard

Control items Measuring items		Gas volume (internal gas pressure)	Air content	Gas volume + air content (simultaneous measurement)	Oxygen concentration *Option 1**	Inside gas pressure
Soft drinks	Carbonated drink	A	A	A	S	A
	Carbonated fruit juice	S	S	S	S	S
	Fruit juice	–	–	–	–	S
	Coffee	–	–	–	–	A
Brewery	Beer	A	A	A	S	A
	Cocktail with tonic water	A	A	A	S	A
	Cocktail with fruit juice	S	S	S	S	S
	Local beer	A	A	A	S	A

A:All can be measured　S:Some samples can be measured　-：Not available
*1　Oxygen concentration can be measured if its volume is over 8mL.

Features

Only by setting a sample container on the sample stage, all the procedures are performed automatically; punching, depressurizing, stirring of a sample, absorption of measurement gas and so on.
By continuously rotating a sample container, the balance pressure of gas and sample temperature in the container are measured and calculated into gas volume / internal gas pressure, which are displayed on the LCD.
Furthermore, carbon dioxide in the sample gas is absorbed into alkaline solution to leave only nitrogen and oxygen, and then calculate air content using the residual gas volume and oxygen concentration, which are displayed on the LCD.
Data printing is available by connecting an external printer to the RS-232C port and 100 measurement results can be recorded in a USB flash drive via the USB port.

The features of GVA-700 are as follows.

No personal error/Fully automated measurement.
Less work/Less possibility to contact alkaline solutions.
Improved maintainability
With the detachable front cover, easy to maintain the sniffing valve and the filter.
Compact size, space saving
Size: 495(W) x555(D) x570(H) mm
(Conventional model : 670(W) x505(D) x680(H) mm)
Easy to secure the installation space with the slide cover.
Inside the absorption cylinder is visible.
Inside of the absorption cylinder can be checked visually.
Improved software
Store 20 methods and 100 measurement results.
USB flash drive
Load methods and store measurement results with a USB flash drive.

Specification

Measuring
items

1)Gas volume / internal gas pressure of carbonated drink
2)Gas volume / internal gas pressure of carbonated drink,air content and oxygen concentration
3)Inside gas pressure of non-carbonated drink

Measuring
range

Pressure		55 to 10cmHg and 9.8kPa to 0.490MPa （0.1 to 5.0kgf/cm2G）
Temperature		0 to 50℃
Residual gas volume		0 to 30mL(Residual gas volume after the absorption of alkaline aqueous solution)
Oxygen concentration		0 to 21%(Oxygen concentration measurement is not available when the residual gas volume is 8mL or less.)

Measurement
accuracy

Pressure		+/- 0.001MPa（+/- 0.01kgf/cm2G）
Temperature		+/- 0.05℃
Residual gas volume		+/- 2% (for 5mL or over and 30mL or less) for the measured value +/- 0.1ｍL (for 0mL or over and 5mL or less) for the measured value
Oxygen concentration		+/- 0.2%

Calibration

Gas volume measuring unit		Pressure sensor-zero : pressure gauge for calibration 0.000MPa(0.00kgf/cm2G) Pressure sensor-span : pressure gauge for calibration 0.490MPa (5.00Kgf/cm2G) Temperature sensor : standard thermometer, pure water
Air content measuring unit		Pressure sensor-zero : pressure gauge for calibration 0.000MPa(0.00kgf/cm2G) Pressure sensor-span : pressure gauge for calibration 0.098MPa (1.00Kgf/cm2G)
Oxygen measuring unit		Oxygen sensor : automatic calibration during pretreatment (manual calibration is possible) Temperature sensor : room temperature

Measurement
time

For measuring gas volume / internal gas pressure only : approximately 90 seconds for one sample
For measuring gas volume, air content and oxygen concentration : 6 to 16 minutes for one sample
Note: Measuring time varies according to sample and condition

Sample container

PET bottles : 2.0L or smaller (190mL cans, various PET containers)
Maximum container : 110 (φ) x 320 (H) mm

Display

16-digit and 1-row LCD (with backlight)

Number of main unit stored data

Measurement conditions are storable to the main unit up to 20 sets
Measurement data as many as the latest 100 samples are storable
By using a USB flash drive, can be taken out in a CSV format

Calculation

Gas volume		Calculation of gas volume / internal gas pressure by using the balance pressure inside the sample container and sample temperature. Calculation formula for the soft drink standard(1) or the EBC standard (2) can be selected. 1 According to “Chart 13-2 Table of absorption coefficients of carbon dioxide” in revised Soft drinks overseen by Japan Soft Drink Association 2 According to ASBC Methods of Analysis -Beer-13: Dissolved Carbon Dioxide
Air Content		Calculation of air content by using the residual gas volume and oxygen concentration after absorbing carbon dioxide in the alkaline aqueous solution

External
output

RS-232C 1ch		For an external printer or an external computer 1) Compatible printer IDP-100、DP-600 2) Printout data Date and time, Measurement mode, Sample No., Gas volume (V/V, g/Kg), Internal gas pressure (MPa, Kgf/cm2G), Pressure (MPa, Kgf/cm2G,cmHg), Temperature（℃）, Air content (mL), Oxygen concentration (%), Residual gas volume (mL)
USB 1ch		For method entry, data storage